Sole rounding and channeling machine.



H. A. BALLARD.

sou: ROUNDING AND GHANNELING MACHINE. APPLIOATION FILED JUNE 11, 1908.

1,1 17,303, Patented Nov. 17, 1914.

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W/Alll J2 $72 i'or 6%!72 e 5.5 e s 1%???)2 17 2w 2hr? 5 ZZZ THE NORRIS PETERS CO, FHQTOLITHO" WASHINGTON. D, C,

H. A. BALLARD. SOLE ROUNDING AND CHANNBLING MACHINE. APPLICATION FILED JUNE 11, 1908.

Patented Nov. 17, 1914.

4 SHEETS-SHEET 2.

Patented Nov. 17, 1914.

H. A. B'ALLARD.

SOLE ROUNDING AND GHANNBLING MACHINE.

APPLICATION FILED JUNE 11, 1908.

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H. A. BALLARD.

SOLE ROUNDING AND CHANNBLING MACHINE.

APPLICATION FILED JUNE 11, 1908.

1 ,1 1 7,303, Patented Nov. 17, 1914 4 SHEETSSHEET 4.

Z6572655 es,- jz 672 2307 THE NORRIS PETERS 60.. FHOTO-LITHQ. WASHINGTON. D. c.

UNITED STATES PATENT OFFICE.

HARRIE A. BALLARD, OF BOSTON, MASSACHUSETTS, 'ASSIGNOR TO THE BOYLSTO'N MANUFACTURING COMPANY, OF SOUTH BOSTON, MASSACHUSETTS, A CORPORA- TION OF NEW JERSEY.

SOLE ROUNDING AND CHANNELING MACHINE.

Specification of Letters Patent. Patented N 17, 1914.

Application filed June 11, 1908.-- Serial No. 437,888;

Rounding and Channeling Machines, of-

which the following is a specification.

This invention relates to machines for rounding and channeling the soles of shoes while they are upon the last, and is an improvenient upon the machine shown in my co-pendmg applicationfiled Jan. 11, 1900,

' Serial No. 240,582, (now U. S. Patent No.

109938 1, issued June 9, 1914;.)

One of the essential featuresof the present invention is the means for intermittently clamping and feeding the work step by step.

Another feature is the construction and arrangement of a pair of work guides, either of which is adapted to operate to the exclusion of the other whenever the nature of the work makes it desirable.

Still another feature is the construction of the cutting and feeding means whereby it may be moved with relation to the work guides without stopping or otherwise affect ing its operation. The capacity for so moving the cutting means is that by reason of which the width of the sole extension may be varied while the machine is in operation.

By means of a machine constructed in accordance with this invention it is possible to cut entirely around the edge of the sole, and while the machine is in operation to vary the space between the edge of thesole and the channel or to entirely remove the channel-ing tool, and to place in operative position a movable Work guide adapted to guide the work by means of the lasted portion of the shoe. I

Other features are hereinafter described and are illustrated upon the accompanying drawings of which Figure l is a side elevation of the Opera.- tive portion of a sole rounding and channeling machine. Fig. 2 is a section and plan on line 22 of Fig. 1. Fig. 3 is a longitudinal vertical section of the said portion. Figs. 1, 5, 6 and 7 are sectional views on lines 1-4, 5-5, 66, and 77 respectively of Fig. 3. Fig. 8 is a sectional view of greater scale of the channel knife slide.

Fig. 9 is a sectional view of means for movbut illustrating ing the movable Work guide. Fig. 10 is a vertical sectional view of greater scale of the several Work-engaging elements. Fig. 11 is 'an end elevation of the cutting, feeding and channeling devices. Fig. 12 is a section on line l212 of Fig. 10. -Fig. 13 is a vertical "section similar to a portion of Fig. 2 a difference of position. Fig. 1% on a still greater scale shows a plan of the rounding knife and its path of movement. Fig. 15 is a vertical section of an adjustable link connection shown in Fig. 13. Fig. 16 is a section on line 16-l6 of'Fig. 14. Fig-17 is a side elevation of a treadle and connection for moving the channeling knife support and work guide.

The same reference characters indicate the same parts Wherever they occur. The several instrumentalities hereinafter described are installed in a head orframe 10 which may be mounted, as shown by Fig. 1, upon a base or standard 11 of which a fragment appears. It may be presumed that the base is equipped with two'or'more treadles or other actuators for controlling such instrumentalities as are manually operable.

The head 10 is an open structure somewvhat resembling a shell and it contains anovable casing or frame 12 in which is in stalled the edge cutting and work feeding means. By way of mounting the casing 12, it is provided with bushings 13 which constitute trunnions and also bearings fora power shaft 14. 'F or convenience of manufacture the casing is made of two sections bolted together, and the bushings are clamped between the sections and project on either side into bearings formed in the head 10. In this'way provision is made for rotation of the shaft, and for oscillation of the casing 12 about the same axis, for a purpose hereinafter explained.

The farther end of the casing 12 normally rests upon a seat 15 from which it may be raised as shown by Fig-13, and is furthermore confined byparallel guides 16 formed on the head. See also Figs. 2 and 6.

This end of the casing is provided with bearings for the trunnions 17 of an oscillatory hanger 18 on which is formed a sleeve 19 constituting a bearing for a reciprocatory carrier 20. The bearing for the carrier extends transversely with relation to the axisof the trunnions 17, so that by means of the carrier the hanger 18 may be oscillated upon its trunnions.

One end of the carrier 20 extends into the casing 12 and is provided with an eccentric strap 21 surrounding an eccentric 22 mounted upon a stud shaft 23. The shaft is mounted in bearings formed in the casing 12, and its axis is parallel to that of the trunnions 17. Rotation is imparted to this shaft from the shaft is by the helical gears 24- and Rotation of the eccentric shaft 23 imparts circular motion to one end of the carrier 20, thereby causing the latter to more back and forth in the sleeve 19 and by reason of its ever changing angle, to 0scillate the hanger 18 upon its trunnions 17.

The outer end of the carrier 20 carries a work clamping and feeding member 26 and a cutting knife 30 Whose form is shown best by Figs. 10 and 14. The said clamping member and knife are adapted to cooperate with a cutting block 31 which is afiiXed by a bolt to the overhanging portion of the hanger 18. The clamping member 26 and the cutting block 31 are so arranged that the edge of a sole a may be clamped by and between them in the path of the cutting knife 30.

The clamping member 26 as shown by Fig. 11, is a head formed on the outer end of a plunger 27 which extends into a chamber formed in the carrier 20. Bearings for the plunger are indicated at 28 and 29, the former being a bushing aflixed in the carrier and of non circular cross section for the purpose of preventing axial rotation of the plunger which is of similar cross section at that point. Between the bearings 28 and 29 are two helical springs and 33 surrounding the plunger 27, and between the springs is a collar 34: aflixed upon the plunger. The plunger, when unobstructed, moves axially with the carrier 20, but is adapted to yield under tension of the spring 32 when clamping the work against the cutting block. The. spring is merely a cushion for the purpose of arresting the recoil of the collar 34: witlr out causing objectionable noise.

The rear end of the knife 30 is of dovetail cross section and is adj ustably aflixed to the carrier by means of a split collar 35 surrounding the carrier and having a dovetail groove for the knife. A bolt 36 serves the two-foldpurpose of locking the collar upon the carrier and of clamping the knife shank in the collar. By reason of the circular motion given one end of the carrier 20,the cut ting end 87 of the knife 30 receives a movement similar to that indicated by the dotted ellipse in Fig. 14. A slot 40 formed in the work-engaging face of the cutting block permits the edge 37 of the knife to advance beyond said face and cut entirely through the work. By reason of the oscillatory Luv/30a movement imparted by the carrier 20 to the hanger 18, the cutting block on the hanger receives a lateral reciprocatory movement corresponding to that of the clamping head 26 and cutting knife 30, as indicated by dotted lines in Fig. 1 1. The side edges 38 and 39 of the knife are sharpened and converge slightly in order to render the cutting action as smooth as possible. I

When the work is in operative position as shown by Fig. 10, it engages a fixed guide 4.1 hereinafter termed the forepart guide. This guide, though adjustable, is rigidly affixed as bybolts 140 to the head 10, and is adapted to engage the upper b of the shoe at or near the inseam j oiningthe upper and innersole.

In practice this guide is used when rounding the forepart of the sole, and may be used also in rounding the heel seat, but for the latter purpose another guide, hereinafter termed the heelseat guide, may be used if desired. When the shoe is held upwardly against the guide, it is advanced step by step in one direction by the clamping and feeding means and rounded by the knife 80 while being fed. Upon each retrograde movement of the carrier 20, the knife 30 is entirely withdrawn from the work by the clamping head 26, and although its clamping tension is somewhat relieved, the clamping head is never withdrawn from engagement with the work. A slight pressure of the work against the guide 41 is generally sufiicient to prevail over the retrograde tendency of the work when the cutting block and clamping head move back laterally for a new hold upon the sole.

The cutting and guiding devices as shown by Figs. 1, 3 and 10, are so related as to cut the sole relatively close to the upper, but may be causedto cut farther from the upper so as to leave what is sometimes termed a wide extension at any desired part of the sole. This is accomplished by moving the cutting mechanism to another position as shown by Fig. 13 in which the forward end of the casing is raised above its seat 15. The means for raising the casing includes a link 42, a lever 43 and a manually operative rod 14C which may be connected to a treadle not shown. The lever is fulcrumed in the head upon trunnions 15 (see Fig. 7) and has several branch arms of which one is pivotally connected to the rod 44 and one to the link 5L2. The link contains an adjustable rod 46 and an adjusting screw l7 therefor. The upper end of the rod is adapted to engage and raise a bolt or projection 48 carried by the casing 12 (see also Fig. 2). When the rod a l is depressed, it tilts the lever d3 and raises the link 42 which may be so adjusted as to raise the casing 12 an equal distance, or any less distance. It may, on the other hand, he so adjusted as to be inefiective for raising the casing, this being determined by the amount of space between the upper end of the rod 46. and the bolt 48. When, however, 'the casing is raised, it turns upon its trunnions 18, thereby carrying the entire work cutting, clamping and feeding mechanism, about the axis of the gear 25 without disturbing thedriving relationwith the lat ter. As a result of moving the cutting point relatively to a stationary. work guide that surface of the work by which the cutting is gaged bears a fixed predetermined relatBion or to the operativeunder all conditions. limiting the upward movement of the casing 12, the head 10 is provided with an'adjustable stop screw 49. I

The heelseat guide hereinbefore mentioned, is indicated at 50 and is vertically movable in a groove in the front of the head 10 in which it is confined by the fixed guide 41. The guide 41 extends across the path of the movable guide but is provided with an aperturefil through which the latter guide moves. As illustrated by Fig. 10, the heelseat guide is elevated to inoperative position but its work-engaging position is shown by dotted lines. The means formoving the said guide includes rack teeth 52 formed thereon, and an intermeshing pinion 53 affixed upon one end ofa stem 54. The stem is rotatably mounted in the head'lO (see Figs. 3 and 4) and carries also grooved pulley'55 on its outer end. By rotating the pulley the guide may be moved to or from work-engaging position and according to the present arrangement, it is normally elevated by a spring 56 to which it is connected by one end of a chain 57. One link of the chain is made fast to the pulley by ascrew 58 see Fig. 9) and the other end of the chain may be employed to manually depress the guide against the tension of the spr1ng56.

For this. purpose, the head 10 is provided withan idle pulley 59 over which-the chain may run to be connected to an actuator such as atreadle 150. It may be observed that the relation of the two guides 41 and 50 with the work is such that neither the work, nor its relation with the guide 41 is disturbed by the guide 50 until the latter is in position to guide-the work, and so no objectionable disturbance is effected if the movable gage is depressed during feeding. of the work.

'A channeling knife 60 is provided for operating'in conjunction with the rounding operation, to cut a channel in the tread surface of the sole at any desired distance from the edge thereof. The channeling knife (see Figs. 10 and 11) is clamped by means of screws 61 in the splithead 62 of an adjustable post 63. The post is mounted in a block 64 and itslower end is screw-threaded and provided with an adjusting nut 65 confined in the block 64. By means of the nut the post may be moved toward or from the rounding knife, but is otherwise maintained in rigid'position by reason of having a nonclrcular portion 66 conforming with a similar bearing in the block. (See Fig. 8.) A screw 67 limits the range of adjustment of the post. I 3

The block 64 is mounted in dovetail guides in a carriage 68 in which it is movable toward and from the rounding knife. The

-rod 44 is actuated. The effect upon the work, when the channeling knife is raised relatively to the rounding knife, is to de crease the space between the edge of the sole and the channel. It will be remembered,

however, thatthe rounding knife may also be raised by the rod 44 but that, by certain.

adjustment of the link 42, a part or all of the movement ofthe latter may be rendered ineffective. If the link besoadjusted as to impart the full movement to'the casing 12, actuation of the rod 44 causes concurrent movement of both the channeling and rounding knives, thus increasing the extension'of as I the sole but keeping the same" relative distanoe between the edge of the sole and the channel. But, on the other hand, if the link 42 be so adjusted as to not move the casing 12 during the first part of its movement,

actuation of the treadle'rod first causes the channeling knife to approach the edge of the sole, and then causes both knives to move together in the same direction;

' The channeling knife, in addition to being movable toward and from therounding knife, is movable transversely or away from thework and may be withdrawn from works engaging position. In practice the'channeling knife'is withdrawn while rounding the heelseat, but is normally in work-engaging "position as illustrated. The carriage 68 is mounted in the. head 10 in dovetail guides 7 5 (see Figs. 6 and 18) in which it is mov able in and out. A helical spring 76 coiled about a rod 77 afli xed to the rearendof the carriage is compressed between the carriage and a fixture 78 in which the rod has a sliding fit. The springnormally tends to press the carriage forward to operative position, but the latter mav be manuall" retracted when desired, and for the'purpose, a hand lever 80 is pivoted at 81 to-the right side of the head 10. Uonnection between the. lever I 80 and the carriage is by means-of a rod. 82 which projects laterally from the carriage through a slot in the head and'a radial'slot 83 in the lever, see Figs. 1 and 6. The lever the heelseat 1 prefer to employ the heelseat guide 50 and to retract the channeling knife to inoperative position, and that at noother time is it desirable to change the normal positions of these elements. In practice I prefer-toconnect both of the chains 57 and 84f to'the same ,treadle in such a way that actuation of'the'treadle may movethe guide 5O 7 and channelingknife; simultaneously, one into work engaging position and the other ltO inoperative position l'iaving thusexplained the nature of my said invention and described a way of constructing and using the same, although Without attempting to setforth all of the forms in ,which it may be made or all of the modes o'fits use, what I claim is 1. l-rmachine of the character described, comprising work-clamping and feeding ,means, and a rounding, knife carried thereby and operatively moved by the clamping and feeding movement of said means.

2. {A machine of the character described, comprising a movable rounding knife, a carrier therefor, a movable cutting block so connected to'the carricras to be reciprocated thereby, and work-clamping means on said carrier adapted to cooperate with the ,cutting block in clamping and feeding the work.

3.13, machineof the character described, comprising a cutting block movable about a fixedaxis, a rounding knife movable to- ,ward and from the cutting block transversely of said axis and alsoimovable about the axis, a carrier forthe knife, and means on the carrier adapted to cooperate .with the cutting block in clamping and feeding the Work.

51. A machine of thecharacter described, comprising the three following elements movable in unison about a common axis, viz., a rounding-knife, a cutting block therefor, and means adapted to cooperate with the cutting block in clamping the work, said knife being also movable toward and from the cutting block.

5. A machine of thecharacter described, comprising an oscillatory member, a carrier having a bearing therein, in which it is adapted to move transversely of the axis, an actuator for imparting to a point of the carrier circular motion about an axis parallel to that of the member, a cutting block aflixed to the member, a rounding knife upon the carrier for cooperation with the cutting block, and means on the carrier adapted to cooperate with the cutting block in clampingzthe work.

6. Amachine of the character described,

comprising a cutting block, a carrier movable,toward and fromthe cutting block, and rounding :knife and yielding work clamp carried by the carrier, the knife being .atlaptedito cut and theclamp to clamp the work againstthe cutting block.

'7. A machine of the character described, comprising acutting block zrnovable about an axis, a rounding knife likewise movable about said axis and also movable radially of said axis :toward and from the cutting block, anda worlnclamping device movable about said axis andradially of the axis toward, and @from the cutting block.

8. A machine of the character described, icomprising .a :movable cutting block, a rounding knife and Work-clamping member movableitowardandfrom the cutting block, andmovable together with the cutting block transversely of said .first movement, said cutting block, rounding knife and clamping member being so organized asto be operable by meansofone andzthe same actuator.

9. A machine of the character described, comprising means foi moving-the work step by step inone direction, and a knife carried andactuatedby said means so as to penetrate and slice the edge of the work during the feeding thereof.

10. A machine of the,characterdescribed, comprising an edge-cutting knife movable for varying the width of stock between its cut and thBrbOCly'Of the shoe,a channeling knife movable for varying thedistance be tween the trimmed edge-of the sole and the channehinanually operati vemeans for moving one of said knives as specified, and means :for transmitting such manually efzfected movement of the last-mentioned :knife to ;the other knife for the purpose specified.

"11. A. machine of the character described, comprising work-guiding means, a channeling knife, a driving element, and the following instrumentalities movable as a whole relatively to the guiding means, channeling knife and drivingelement, viZ.,edge-cutting and work-feeding means, and actuating means therefor, saidactuating means being in undisturbed driving relation at all times with said d ving element.

12. A machinetof the character described, comprising an edge-cutting knife movable for varying the width of stock between its out and the body of the SllO6,'L channeling knife movable for varying theidistance between thetrimmed edge of the sole and the channel, means for moving the channeling knife for the purpose specified, and means for transmitting suchmovement to the edgecutting knife for the purpose specified.

13. A machine of the character described, comprising an edge-cutting knife movable for varying the width of stock between its cut and the body of the shoe, a channeling crating the same, a movable channeling knife, and means for communicating movement from one of said knives to the other to adjust one by the other.

15. A machine of the character described, comprising a work guide, a channeling knife movable relatively to said work guide, a rounding knife movable transversely of its plane of cutting movement, and means for communicating movement from said channeling knife to said rounding knife to adjust the latter from one plane of cutting movement to another.

16. A machine of the character described, comprising a work gage, two knives for operating upon the sole of a shoe, one for channeling the sole and the other for trimming the sole, means for adjusting one of said knives, and connections betweenv said means and the other knife for adjusting the latter whereby both knives may be adjusted simultaneously relatively to said gage to vary the Width of the margin of the sole.

1?. A machine of the character described, comprising an edge-cutting knife, a fixed guide for the work, a channeling knife movable to and from operative position, a movable work-guide for displacing the work from said fixed work-guide, manually operative means for moving said channeling knife away from operative position and for moving said movable Workguide to displace the work as specified, and means for moving the channeling knife from operative position without moving said movable Workguide.

18. A machine of the character described comprising a frame, a driving shaft, a closed casing movably mounted on the'shaft, work-feeding and edge-cutting means supported by said casing, an actuator inclosed within the casing for operating the feeding and cutting means, and means driven by the shaft within the casing for driving said actuator. v v

19. A machine of the character described, comprising a rounding knife, a channeling knife, and a single means for communicating movement to both of said knives for adjusting them simultaneously Withoutdisengaging either from the work.

2-0. A machine of the character described, comprising a slide, guides therefor, guides on said slide transverse to those in which the slide is arranged, a holder mounted to slide in the guides on said slide, a channeling knife on said holder, a rounding knife movable transversely of its plane of cutting movement, means for moving said channeling knife holder relatively to said slide, and connections between the channel knife holder and the rounding knife for transmitting movement from said holder to shift said rounding knife from one plane of cutting movement to another.

21. A machine of the character described, comprising a work-guide, a rounding knife adapted to be shifted transversely of its plane of cutting movement, a channeling knife adapted to be shifted, and a. single manually operative means for shifting said knives at will relatively to said Work'guide and relatively to each other.

22-. A machine of the character described comprising a rounding knife, a channeling knife, and a single means for communicatadjusting them simultaneously to vary the marginal portion of the sole, said means having provisions for varying the adjusting movement of'one independently of the other to vary the distance of the channel from the edge of the trimmed sole.

In testimony whereof I have aflixed my signature, in presence of two witnesses.

, HARRIE A. BALLARD. Witnesses:

Gno. T. ARMSTRONG, BERTHA \VOODBURY.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents,

Washington, D. G.

ing movement to both of said knives. for' 

